docs: def between(value, min=None, max=None):
      """
      Validate that a number is between minimum and/or maximum value.
  
      This will work with any comparable type, such as floats, decimals and dates
      not just integers.
  
      This validator is originally based on `WTForms NumberRange validator`_.
  
      .. _WTForms NumberRange validator:
         https://github.com/wtforms/wtforms/blob/master/wtforms/validators.py
  
      Examples::
  
          >>> from datetime import datetime
  
          >>> between(5, min=2)
          True
  
          >>> between(13.2, min=13, max=14)
          True
  
          >>> between(500, max=400)
          ValidationFailure(func=between, args=...)
  
          >>> between(
          ...     datetime(2000, 11, 11),
          ...     min=datetime(1999, 11, 11)
          ... )
          True
  
      :param min:
          The minimum required value of the number. If not provided, minimum
          value will not be checked.
      :param max:
          The maximum value of the number. If not provided, maximum value
          will not be checked.
  
      .. versionadded:: 0.2
      """
      if min is None and max is None:
          raise AssertionError(
              'At least one of `min` or `max` must be specified.'
          )
      if min is None:
          min = Min
      if max is None:
          max = Max
      try:
          min_gt_max = min > max
      except TypeError:
          min_gt_max = max < min
      if min_gt_max:
          raise AssertionError('`min` cannot be more than `max`.')
  
      return min <= value and max >= value